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Synthesis, properties, and applications of hybrid polyurethane–urea obtained from air-oxidized soybean oil

This study explores the synthesis of hybrid polyurethane (PU)–urea obtained from air-oxidized soybean oil. The effect of the oxidation time of the soybean oil on the production of soy poliol and hybrid PU–urea films employing (3-aminopropyl) trimethoxysilane was investigated. Soybean polyols and hybrid PU–urea materials were characterized by various techniques such as 1H and 29Si nuclear magnetic resonance, Fourier transform infrared spectroscopy (FTIR), gel-permeation chromatography (GPC), gel content, scanning electron microscopy(SEM), wide-angle X-ray diffraction (WAXD), synchrotron small-angle X-ray scattering (SAXS), contact angle, and glow-discharge optical emission spectroscopy. Furthermore, the physicomechanical properties of the materials were characterized and their corrosion resistance was determined. The produced ecofriendly materials exhibited a dependency of the hybrid network on the degree of gel content. The phase morphology developed during the polymerization reaction influences the size of hard domains and their organization. This study provides a direct relation between the corrosion resistance and material hydrophobicity and the nature of the heterogeneity of the phase morphology formed during one-step polymerization procedure.

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Volume 108, July 2017, Pages 15–24

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